1、Use 12000times/min high frequency vibrations to smash stubborn tooth stains and dental calculus. The damage to the teeth is very small and cares for your teeth 2、High quality alloy head can be effectively in the deep blind zone in your mouth, can effectively remove long-term cleaning can't afford the tartar, plaque, smoke stains and tea stains 3、5 levels that you can adjust any level so as to adapt to your demands 4、USB Charging: One full charge can support about 200 times work 5、IPX6 Waterproof: Do not have to worry about safety problems when using Features: Use 12000times/min high frequency vibrations to smash stubborn tooth stains and dental calculus. The damage to the teeth is very small and cares for your teeth. High quality alloy head can be effectively in the deep blind zone in your mouth, can effectively remove long-term cleaning can't afford the tartar, plaque, smoke stains and tea stains. 5 levels that you can adjust any level so as to adapt to your demands. USB Charging: One full charge can support about 200 times work. IPX6 Waterproof: Do not have to worry about safety problems when using. Ergonomic handle provides a comfortable hand feeling. Portable size: It is suitable for home use and travel use. Specification: Item Type: Oral Care Tool Material: Alloy Optional Color: Blue, Pink Optional Style: Single Head, 3-in-1 Rated Current: 200mA Rated Voltage: 3.7V Size: Approx. 19.1 * 3.1 * 2.4 cm / 7.5 * 1.2 * 0.9 inch Package Include: Single Head: 1 * Machine + 1 * Data Cable / 3-in-1: 1 * Machine + 1 * Data Cable + 3 * Replaceable Heads